Massimiliano badoni



(Hommel.) 2 sheets-sheet 1.

M. BADONI.

LOCK- K lNo. 501,639. Patented July 18, 1893-.

2 sneetS-sheenzg M. BADONI.

LOCK.

'Patented July 18, 1893.

.vent the same being withdrawn until the key 'ii `rrED STATES- MASSIMILIANO PATENT OFFICE.

BADONI, OF GENEVA, SIVITZERLAND, ASSIGNOR TO ALOYS REVILLIOD-DE MURALT, OF SAME PLAGE.

L O C K SPECIFICATION forming partV of Letters Patent No. 501,639, dated July 18, 1893.

Application tiled J' une 20, 1892. Serial No. 437,411. (No model.)

the same, and there is a handle and a ba'r therewith connected that can be used to withdraw the spring latch. Vhen the bolt is moved in one direction by the key and key cylinder, the latch is drawn back into the lock and so held, and when the bolt is moved in the other direction it holds the latch to preis used in the reverse direction. The invention consists in the combination of devices hereinafter described and claimed.

In the accompanying drawings, Figure 1 is an elevation of myimproved mechanism with the plate removed. Fig. 2 is a cross section through 0c a; of Fig. 1. Fig. 8 is an elevation of my improved mechanism with the plate removed, the latch being withdrawn by Inoving the handle in the direction of the arrow. Fig. 4 is a cross section through y y of Fig. 3. Fig. 5 is an elevation of my improved mechanism with the plate removed showing the bolt as moved to one side by the key to retract the catch. Fig. 6 isa similar view with the bolt moved to the opposite side and securing the latch as projected. Fig. '7 is an elevation of my improved mechanism with the plate removed, the parts being in the opposite position to that shown in the figures heretofore named. Fig. 8 is a cross section through zz of Fig. 7. Fig. 9 shows the catch, handle and respective rods in perspective with the forked ends interlocked as shown in Figs. 7 and 8, and Fig. 10 shows (in an inverted position) the same parts with the forked ends interlocked in the relation shown in Figs. 1 to 6 inclusive. Fig. 11V is an elevation of a safety spring hereinafter described. Figs. 12 and 13 are sections of the key cylinder and safety spring, the said spring in Fig. 12 being in the normal condition and in Fig. 13 compressed. Fig. 14 is a separate elevation of the bolt, its center rod and spring. Figs. 15

and 16 are cross sections through 0c .fr of Fig.l

14 in opposite directions.

In all the figures the same letters of reference refer to the same parts.

The casing of the lock and latch is represented at A and there isan opening at A', the lateral edges of which are provided with a notch a and a recess d2.

The latch is represented at B and provided with a knife-shaped edgeb which is to be I'eceived in the recess a2.

The bolt is represented at C and the same has an open center and is provided with a rod c and helical spring c around said rod.

C and C2 are cross pieces connecting the respective longitudinal portions of ythe bolt, and there are pins c2 c3 projecting from one side of the bolt, and there is a plate A2 within the casing and the bolt moves through the casing, the plate A2 acting as a guide at one side, and the pins c2 c3 bearing against the case at the other side.

The lower edge of the bolt O is provided with notches c4 c5 cG and c7 between which are talons or projections. The key cylinder is represented at D and the same is adapted to be rotated within the casing, a circumferential portion of said key cylinder being adapted to fit in the notch c4, and its respective ends to engage the'talons between the notches o4 and c5 or c4 and c6.

E represents a bar having a hook e' at one end engaging the latch Band at its other end provided with a forked end e and shoulders.

F represents another bar, on one end of which outsidethe casing is the handle F. The other end of this bar F has a forked end F2 which engages with the shoulder of the'forked end e', the parts thereby interlocking. Both of these forked ends straddle the baro within the bolt O, and the spring c presses at one end against the bolt and at the other end against the face of the forked end e', its expansive action tending to press the said hooked ends toward one side of the bolt C.

G represents a leaf spring shown particularly in Figs. 1l, 12 and 13, the same being contained in the lower part of the casing and IOL) outwardly, thus acting against the spring ck to draw along the rod E and retract the latch B, which retracted position is shown in Figs. 3 and 4. The door may thus be opened by operating the mechanism as a latch.

Fig. 5v shows the position the parts will assume' when the key's inserted into the easing from outside the door and is turned, thedisk of the key cylinder being rotated out of the notch c4 so that the bit 'of the key DI 'comes i against the talon at the Aside of the netch c5, moving the bolt backward into the position Fig. 5, and with it withdrawing the'catch B sothat the door canb'e opened.

After the door has been opened the key to be withdrawn must be partially turned; d

this will return the parts tothe position showni in Figs. 1 and 3, wherein they canlie' operated.

again as a latch either in shuttingthe door or in opening it from the ins-ide.

Fig. 6 shows the positionv the parts w'illassumewhen the key operates the mechanism to lock and secure the doei. The key may be inserted "from either side, and thisact compresses the spring G so that the key c'ylindei1 is free to be turned (this was als'othe case with the operation described in connection with l Fig. 5); the key is now turned in the opposite direction to that employed in opening the door, namely in the direction ofthe arrow Fig.

6. The disk of the key cylinder isturned out of the notchc1 and the bit of the key operates the talon at the side of the notch c6, moving the bolt along so that its end comes against the inner face Vof the casing at the right hand side, andas the key is turned further to be ren'o've'd, the disk ef the key cylinder is turned in to the notch c7. The bolt is thus locked and secured in this which is its extreme movement in one direction, and the latch B cannot be operated, because the edge of the bolt C comes up against its inner edge, thereby preventing vits movement; the door is thus locked and to unlock the door the reverse operation of the key is effected.

My improved device contains but few parts 5 and its construction is exceedingly simple and the same is' not liable to become brekenl or g misplaced.

l claim as my invention; l; The combination withthe c"'sing, the bolt i C, and means for moving andv holding the bolt Within thecasing; of the latch B, the rods E and F, the handle'F, the forked `interlocking ends e and F2, the rod'c'which saidforked ends fstraddl'e, and a springe', substantially as and for'the purposes se't forthi i y 2. The combination with the casing,tlie latch i B and means for'operatin g thesame, of the bolt C having,r notches c4, c5, c6 and clon its under edge and intermediate talons, the key cylinder D engaging thel notches and talons of the f bolt C, and the' eompressible spring G'engaging the key cylinder, substantially as set forth. In testimony whereof I have signed my lname to this specilication in the presence of itwo subscribing'witnesses. y

MASSIMILIANO BADONI. Witnesses:

E. IMER SCHNEIER, A. REvILLioD DE MURAL-T. 

